fixed bugs in atomic_flag
commiting changed mutex to merge
fixed bugs in the atomic_flag class
Buildfix for iOS.
ppsspp on Android gains and loses audio focus
merged with latest upstream version
made unwated changes to base/mutex. changing
made a mistake while merging base/mutex.
Merge pull request #147 from bollu/AndroidAudioFocus

Implemented correct audio focus on Android
Fix: SDL not finding a ddevice doesn’t stop the program anymore.
Merge pull request #148 from n4ss/master

SDL not finding a device doesn’t stop the program anymore.
enable items to be highlighted. Will be used to highlight save slots in use
removed testing code from onFocusChanged
Add another constructor to LinearLayoutParams
Initial support for loading OpenGL ES 3.0 on Android, and checking for it.
Must update glew before I can enable MAY_HAVE_GLES3 for desktops
moved Highlight into Choice. corrected code style.
Merge pull request #149 from bollu/ClickableHighlighting

highlighting UI items
Include KHR platform for GLES3 defines. Fixes Symbian.
Don't even try to build the gl3stub on desktop platforms